Research shows in the 1970's cow collagen started the beginning of lip enhancement. It quickly phased out due to complications of allergic reactions & "blown up" lip outcomes. We've all watched the famous flaunt their lips. Lisa Rinna (silicone implant) owned a botched job back in the 1980s. She later had her lips revised - still big... Although, many still criticize her lips, this gorgeous gal embraced her outcome and has used those lips to laugh all the way to the bank.